I am using those blades on my AS350. They were perfectly balanced out of the package and are smooth as butter being cut with a hot knife. I painted mine with Tamiya paint to try and match the factory military colour but I think I got the head right but not the blades. Oh well, one more rattle can to pick up. Take care.

Same here on the blades. Initially I checked them as 'close enough' and threw them on. Then I actually checked them well. .43gram variance heavy to light, and beyond the resolution range of my through-bolt balancer. So right on the money. I'm almost afraid to paint them they are so matched, lol. I'll be using Tamiya paint on mine also, but the brushed on acrylic, lighter and more consistent application weight-wise.

I've found Ghost Grey to be a good match for the Eurocopter blades, I believe the 'light' version of that color IIRC.

LOL. Mine are painted with dark Ghost Grey and they are a bit dark. The head is painted with light Ghost Greay and it appears to be correct. I am thinking that I may change the grey on the blades to a different shade with less blue in it but still darker than the light Ghost Grey. Take care.